76666875 has 40 divisors (see below), whose sum is σ = 131957760. Its totient is φ = 39540000.

The previous prime is 76666873. The next prime is 76666903. The reversal of 76666875 is 57866667.

It is a happy number.

It is not a de Polignac number, because 76666875 - 2¹ = 76666873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76666873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57466 + ... + 58784.

It is an arithmetic number, because the mean of its divisors is an integer number (3298944).

Almost surely, 2^76666875 is an apocalyptic number.

76666875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

76666875 is a deficient number, since it is larger than the sum of its proper divisors (55290885).

76666875 is a wasteful number, since it uses less digits than its factorization.

76666875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1358 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 76666875 is about 8755.9622543727. The cubic root of 76666875 is about 424.8176842007.

It can be divided in two parts, 7666 and 6875, that added together give a palindrome (14541).

The spelling of 76666875 in words is "seventy-six million, six hundred sixty-six thousand, eight hundred seventy-five".